<div dir="ltr"><div>Hi ,<br></div>Thanks for your reply. My question is not about the normalization but about the unit of temperature after normalisation. I resolved it. <br><br><br><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, May 27, 2016 at 5:40 PM, Adam Phillips <span dir="ltr"><<a href="mailto:asphilli@ucar.edu" target="_blank">asphilli@ucar.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hello,</div>Please do not post the same question multiple times to the email list. If your question goes unanswered it likely means that no-one on ncl-talk knows the answer to the question you posed. <div><br></div><div>Again, the output from eofunc_ts (principle component timeseries) is of the units of the original field. Thus, if you pass air temperature in degrees C into eofunc and then pass the output (normalized EOFs) to eofunc_ts the output principal component (PC) timeseries will be in units of degrees C, while the output EOFs from eofunc will be unitless. Note that the range of PC values will likely not match the range of values of your original input air temperature. You can multiply the principal component timeseries by the EOFs to get the pattern for that particular PC value in the original units.</div><div><br></div><div>I cannot comment on why eof_5 is normalizing the PC by dividing by the sum of the areal weights. Perhaps someone else can do so.</div><div><br></div><div>The normalizing of the PC that I spoke about in my previous email is shown in example #4 here:</div><div><a href="http://www.ncl.ucar.edu/Applications/Scripts/eof_4.ncl" target="_blank">http://www.ncl.ucar.edu/Applications/Scripts/eof_4.ncl</a><br></div><div><br></div><div>Hope that helps. If not, as always please respond to the ncl-talk email list.</div><div>Adam</div><div> </div></div><div class="gmail_extra"><div><div class="h5"><br><div class="gmail_quote">On Fri, May 27, 2016 at 12:29 PM, Adv <span dir="ltr"><<a href="mailto:advita6@gmail.com" target="_blank">advita6@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>Hi,<br><a href="http://www.ncl.ucar.edu/Applications/Scripts/eof_5.ncl" target="_blank">http://www.ncl.ucar.edu/Applications/Scripts/eof_5.ncl</a><br></div>In this example normalised time series with unit m. Could someone help me to interpret? Generally, normalised values are unitless.<br><br></div> Thank you,<br></div><br></div>
</blockquote></div><br><br clear="all"><div><br></div></div></div><span class="HOEnZb"><font color="#888888">-- <br><div data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><div><span><font color="#888888">Adam Phillips <br></font></span></div><span><font color="#888888">Associate Scientist, </font></span><span><font color="#888888">Climate and Global Dynamics Laboratory, NCAR<br></font></span></div></div><div><span><font color="#888888"><a href="http://www.cgd.ucar.edu/staff/asphilli/" target="_blank">www.cgd.ucar.edu/staff/asphilli/</a> </font></span><span><font color="#888888">303-497-1726 </font></span></div><span><font color="#888888"></font></span><div><div><span><font color="#888888"><br></font></span><div><span><font color="#888888"><a href="http://www.cgd.ucar.edu/staff/asphilli" target="_blank"></a></font></span></div></div></div></div></div></div></div></div></div></div></div>
</font></span></div>
</blockquote></div><br></div>